function RPS_show_info(G)
s1=get_action(G.P{1}.action);
s2=get_action(G.P{2}.action);
title(sprintf('time=%g, step=%d, P1=%s, P2=%s',G.t,G.step,s1,s2));

function s=get_action(n)
actions={'None','Rock','Scissors','Paper'};
s=actions{floor(n)+1};
